question idea: Copy Nonoverlapping

```rust
fn main() {
    unsafe {
        let src = [1_u8, 2, 3, 4];
        let mut dest = std::mem::MaybeUninit::<[u8; 4]>::uninit();

        std::ptr::copy_nonoverlapping(&src, dest.as_mut_ptr(), std::mem::size_of::<[u8; 4]>());
    }
}
```

from @5225225

